Arkova

Arkova is a SaaS document-integrity and verification platform. It produces tamper-evident, independently verifiable proof of a document's existence and integrity by anchoring a cryptographic fingerprint (SHA-256) to the public Bitcoin blockchain, accessible through a verification API and SDK. By design, documents are processed entirely client-side — fingerprinting, OCR, and PII stripping run in the user's browser — so document content never leaves the user's device; only a privacy-stripped fingerprint and bounded metadata are transmitted.